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Calanoida ( Order ) |
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Clausocalanoidea ( Superfamily ) |
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Aetideidae ( Family ) |
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Pseudochirella ( Genus ) |
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Pseudochirella notacantha (Sars, 1905) (F,M) | |
| | | | | | | Syn.: | Gaidius notacanthus Sars, 1905 b (p.9, Rem.M); no Farran, 1908 b (p.33, fig.M); no A. Scott, 1909 (p.52, figs.M);
Chirudina parvispina : With, 1915 (p.151, figs.M, juv.M); ? Farran, 1926 (p.255: juv.M);
Pseudochirella squalida Grice & Hulsemann, 1967 (p.24, figs.F); 1968 (tab.2); Deevey & Brooks, 1977 (p.256, Table 2: as squallida, station "S"); Bradford & Jillett, 1980 (p.71, figs.F, fig.73, distribution chart); Ferrari, 1980 (p.536, figs.F,M);
no Gaidius notacanthus : Farran, 1908 b (p.33, fig.M); A. Scott,1909 (p.52, figs.M); Sewell, 1948 (p.545, 550);
no Chirudina notacantha : With, 1915 (p.148, figs.F,M);
no Pseudochirella notacantha : Vervoort, 1957 (p.67, figs.M, Rem.) | | | | Ref.: | | | Sars, 1925 (p.86, figs.F juv. ,M); Farran, 1929 (p.208, 232, Rem.: juv.); Sewell, 1929 (p.128); Rose, 1933 a (p.110, figs.F,M); Jespersen, 1934 (p.66, Rem.F); ? Sewell, 1947 (p.98, fig.juv.F); 1948 (p.331, 500, 513, 520, 525, 527, 532); Vervoort, 1952 g (n°48, p.3, figs. juv.F,M); 1963 b (p.151, Rem.); Bradford & Jillett, 1980 (p.66); Markhaseva, 1989 (p.37, 40, 41, figs.F,M); 1996 (p.275, figs.F,M) |  issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.277, Fig.221]. Female: (a) from NE Indian, other figures from SE Pacif. Nota: Cephalothorax 3.7-4.2 times longer than urosome. Posterior corners of last thoracic segment symmetrical, rounded. Genital segment asymmetrical, with moderate knob-like projections on the left and right, of variable shape. Urosomal segments 1-3 covered with hairs. A1 as long as cephalothorax - reaching caudal rami. Exopodite of P1 unclearly 3-segmented. Endopodite of P2 indistinctly 2-segmented. Coxopodite of P4 with 6-9 spines.
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 issued from : E.L. Markhaseva in Proc. Zool. Inst. RAN, St. Petersburg, 1996, 268. [p.278, Fig.222]. Male (from SE Pacif.). Nota: Cephalon and thoracic segment 1, as 4th and 5th segments fused. Cephalothorax about 3 times longer than urosome. Posterior corners of last thoracic segment with spines. Exopodite 1 of P1 with very small external spine.
Endopodite of P2 virtually 2-segmented.
Spines on coxopodite of P4 absent.
Endopodal segment 2 of P5 with 3 teeth in distal part of segment; exopodal segment 3 with rounded top.
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 issued from : J.M. Bradford & J.B. Jillett in Mem. N.Z. oceanogr. Inst., 86, 1980. [p.74, Fig.50]. As Pseudochirella squalida. Female: A, genital segment (dorsal); B, inner edge of basipod 1 of P4.
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 issued from : G.D. Grice & K. Huisemann in Proc. U.S. natn. Mus., 1967, 122 (3583). [p.51, Figs.65-70]. As Pseudochirella squalida (from 29°45'S, 64°58'E). Female: 65, forehead (lateral); 66, last thoracic segment and urosome (lateral right side); 67, genital segment (dorsal); 68, idem (lateral left side); 69, A2; 70, P4. Nota: Rostrum strong. A1 reaches furca. A2: 2nd endopodal segment with 7 setae on outer lobe and 9 setae on inner lobe. First basal segment of P4 with 6 coarse spines. Genital segment slightly asymmetrical and hairy, small rounded protuberances on each side.
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.539, Fig.1]. As Pseudochirella squalida. Female (from NW Atlant.: off Delaware): A, urosome (dorsal); B, idem (ventral); E, habitus (lateral right side). Nota: Head and 1st thoracic segment fused dorsally and free laterally, 4h and5th fused. Male: C, urosome (dorsal); D, habitus (lateral left side). Nota: Head and 1st thoracic segment fused, 4th and 5th fused. Posterior cephalothorax with small, slightly curved posterodistal spine on each side. Genital segment with genital opening on left side.
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.540, Fig.2]. As Pseudochirella squalida. Female: A, A2; C, A1 (segments 1-13); D, idem (segments 14-21); E, idem (segments 22-25). Male: B, A2; F, A1 (segments 1-13); H, idem (segments 14-21); G, idem (segments 22-25). Letters on proximal segments of A1.
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.541, Fig.3]. As Pseudochirella squalida. Female: A, Md; C, Mx1 (posterior); E, Mx2 (posterior); F, mx2 (anterior); H, P2 (posterior); I, P3 (posterior). Male: B, Md (posterior); D, Mx1 (posterior); G, Mx2 (posterior).
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.542, Fig.4]. As Pseudochirella squalida. Female: A, P4 (posterior); B, Mxp (posterior); D, genital segment (lateral right side); E, idem (lateral left side); F, idem, with spermatophore (lateral left side); G, idem (lateral right side). Male: C, Mxp (posterior).
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.544, Fig.5]. As Pseudochirella squalida. Female: A, P1 (anterior). Male: C, P4 (posterior); D, P5 (posterior); E, idem (anterior); F, P1 (anterior).
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 Issued from : G.O. Sars in Résult. Camp. Scient. Prince Albert I, 69, pls.1-127 (1924). [Pl.XXIV, figs.7-12]. juvenil Female (from Azores Is. and Europa): 7, habitus (dorsal); 8, idem (lateral left side); 9, forehead (lateral). Male: 10, habitus (dorsal); 11, posterior segment cephalothorax and 1st and 2nd urosomal segments (lateral left side); 12, P5.
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 issued from : R.B.S. Sewell in The John Murray Expedition, 1933-34, Scientific Reports, VIII (1), 1947. [p.99, Fig.21, D]. With doubt. Female stage V (from N Arabian Sea): D, Mx1.
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 Issued from : E.L. Markhaseva in USSR Acad. Sci., Zool. Inst., Explor. Fauna Seas. Marine Plankton, 1989, 41 (49). [p.53, Fig.23]. Female: Thoracic segment 5 and genital segment. Nota from the key: 1 - Genital segment asymmetrical. 2 - Thoracic posterior corners without spines. 3 - Thoracic posterior corners with rounded lobes. 4 - Thoracic posterior lobes symmetrical. 5 - Two small protuberances present on the left and one small on the right in posterior part of genital segment.
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 Pseudochirella notacantha Male: 1 - Exopodite 2 of left P5 with 3 teeth in distal part of segment. 2 - Exopodite 2 of left P5 with 2 teeth in distal part of segment. 3 - Posterior corners of last thoracic segment with spines on each side.
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 issued from : F.D. Ferrari in Proc. Biol. Soc. Washington, 1993, 93 (3). [p.546-47, Table 2]. As Pseudochirella squalida. Characters which exhibit dimorphism in stage V or stage Vi and their state in the remaining stage. Cph/Pg1: Cephalon and 1st thoracic segment; Pg4/Pg5: 4th and 5th thoracic segments; Pg points: characteristic of the posterior corners of thoracic segment 5; Ur: urosome; CR: caudal rami; Md: mandible; Mx1: maxillule; Mx2: maxilla; Mxp: maxilliped; P1-P5 swimming legs 1 to 5; Re: exopod; Ri endopod; B1: coxa; B2: basis; Li: inner lobe; Se: outer seta.
| | | | | Compl. Ref.: | | | Hardy & Gunther, 1935 (1936) (p.159, Rem.); Lysholm & al., 1945 (p.20); Sewell, 1948 (p.331, 500, 513, 520, 525, 527, 532); Harding, 1974 (p.141, tab.2, gut contents); Deevey & Brooks, 1977 (p.256, Table 2, station "S"); Razouls & al., 2000 (p.343, Appendix); Holmes, 2001 (p.50, Rem.); Gaard & al., 2008 (p.59, Table 1, N Mid-Atlantic Ridge); Park & Ferrari, 2009 (p.143, Table 4, Appendix 1); | | | | NZ: | 12 | | |
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Distribution map of Pseudochirella notacantha by geographical zones
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| | | | | | | | |  Issued from : E.L. Markhaseva in Issled. Fauny Morei, 1989, 41 (49). [p.56, Fig.11].
Geographical distribution of P. notacantha.
1: from literature as P. squalida; 2, from literature; 3: present occurrences. |
| | | | Loc: | | | Antarct. (SW Atlant., Indian, SW & S Pacif.), South Georgia, Atlant. (temperate & boreal), G. of Guinea, off Mauritania, off Madeira, ? Bay of Biscay, Azores, Sargasso Sea, Station "S" (32°10'N, 64°30'W), off Delaware, off E Cape Cod, Davis Strait, S Iceland, off W Ireland, ? Arabian Sea, S Laccadive Is., SW Indian, Japan (in/em> Morioka, 1972 a, p.314), New Zealand, S Pacif., Juan Fernandez Is., S Peru, off Juan Fernandez Is., N-S Chile (sub-Antarct.).
Type locality: NE Atlantic. | | | | N: | 22 | | | | Lg.: | | | (1) M: 4,9; (7) juv.F: 4,42; M: 5,28; (14) M: 5,1-4,9; (37) F: 6,8-5,45; M: 5,8-4,9; (264) F: 6,8-5,5; M: 5,8-5,1; {F: 5,45-6,80; M: 4,90-5,80} | | | | Rem.: | epi- to bathypelagic. Sargasso Sea: 500-2000 m (Deevey & Brooks, 1977, station "S");
Sampling depth (Antarct.) : 0-750-1000+ m.
The male described by With (1915) does not seem to be a synonym of any other species.
Vervoort (1952 g) and Markhaseva (1996) do not agree on the synonymy between Chirudina parvispina in With (1915; from 61°30'N) and P. notacantha.
For Grice & Hulsemann (1967, p.24) the female specimen resembles P. obesa. | | | Last update : 28/01/2016 | |
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 Any use of this site for a publication will be mentioned with the following reference :
Razouls C., Desreumaux N., Kouwenberg J. and de Bovée F., 2005-2024. - Biodiversity of Marine Planktonic Copepods (morphology, geographical distribution and biological data). Sorbonne University, CNRS. Available at http://copepodes.obs-banyuls.fr/en [Accessed October 12, 2024] © copyright 2005-2024 Sorbonne University, CNRS
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